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Architekturbüro Ledermann AG Langenthal 

Langenthal · Since 1999

The Ledermann AG architecture firm primarily deals with the planning, consulting and realization of construction projects, particularly in the areas of renovations, conversions, expansions and new constructions of residential and nursing homes, commercial and office buildings, as well as public buildings. In addition, the company also offers services in the field of renewable energies, such as the planning of solar systems, as well as the creation of digital planning bases and visualizations.

Baer & Bichsel AG 

Langenthal · Since 1994

The core activity of Expert Trösch, Baer & Bichsel AG is the sale and consulting of high-quality products from the entertainment and household electronics sector, including the installation and maintenance of devices and systems. The company offers individual solutions tailored to customers' specific needs, placing great emphasis on personal consulting and service.

CertiQua GmbH 

Langenthal · Since 2015

The company CertiQua offers a platform for customer reviews and recommendations for Swiss specialist companies. The core activity consists of customers evaluating the services of specialist companies and these evaluations being published on CertiQua's website. Based on these evaluations, a specialist company can receive the CertiQua quality label if it regularly receives good evaluations. The goal is to support customers in their search for reliable specialist companies and to provide participating companies with an opportunity to demonstrate their quality and customer satisfaction.

Chronoflex Schweiz AG 

Langenthal · Since 2005

The core activity of Chronoflex Schweiz AG is the manufacture, maintenance and repair of hydraulic hoses, as well as the provision of related services, such as hydraulic hose emergency service and preventive maintenance. The company also offers additional services like the 'Hose Clinic' and distributes products through a catalogue.

dpo meyer 

Langenthal · Since 2021

The company's core activities encompass three main areas: 1. **Building Materials Trade**: The trade of lightweight building materials of all kinds, including materials for the production of lightweight concrete, fillings between beam layers, insulation materials for hollow spaces under buildings, and extinguishing agents for combating burning ion batteries. 2. **Building Consultancy**: The provision of consulting services for construction projects, particularly for renovations of rooms such as kitchens, bathrooms, living rooms, and dining rooms, to ensure that planned changes can be carried out without risks to the stability and earthquake safety of the building. 3. **Construction Project Support**: The accompaniment and support of construction projects to ensure that planned projects can be successfully implemented without unwanted surprises.

IMS Immobilien Multiservice AG 

Langenthal · Since 2004

The core activity of IMS Immobilien Multiservice AG is the provision of services related to the real estate industry, particularly: property viewings, valuations, sales, rentals, and purchase consulting for apartments and houses. The company thus offers comprehensive real estate services, from consulting to sales or rentals.

Kummer Treuhand AG 

Langenthal · Since 1997

The core activity of Kummer Treuhand AG is the provision of trust services, particularly in the areas of: * Financial accounting * Personnel administration * Company formations * Accounting * Auditing * Trust consulting * Tax consulting * Business consulting The company thus offers comprehensive services for companies and private individuals in the areas of finance, accounting and corporate management.

Lantal SuperCo AG 

Langenthal · Since 2010

Lantal SuperCo AG manufactures and supplies textiles and interior components for the aviation, railway and bus sectors. The company website lists products and services such as upholstery fabrics, curtains, deep‑dyed carpets, leather, cut‑and‑sew services and in‑house laboratory testing, with integrated in‑house production from raw wool to finished parts.

Lantal Foundation for Cultural and Sustainable Education 

Langenthal · Since 2002

Lantal Textiles AG 

Langenthal · Since 2004

Lantal Textiles AG designs and manufactures textile interior solutions for the transportation sector, with a focus on aviation, rail and bus applications. Offerings include upholstery and curtain fabrics, deep‑dyed carpets (approved by Airbus and Boeing), velvets, leather, laboratory testing and cut & sew services, with in‑house production across the textile value chain.